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- 1. Multiple Choice
Which of the following tests for starch?
Iodine
Benedict's
Biuret
Emulsion
- 2. Multiple Choice
Which of the following tests for protein?
Iodine
Benedicts
Biuret
Emulsion
- 3. Multiple Choice
Which of the following tests for glucose?
Iodine
Benedicts
Biuret
Emulsion
- 4. Multiple Choice
When starch is present iodine turns...
purple
blue-black
orange
brick red
- 5. Multiple Choice
When protein is present Biuret turns...
purple
blue-black
orange
brick red
- 6. Multiple ChoiceWhen large amounts of glucose is present Benedicts turns...purpleblue-blackbrick-redgreen
- 7. Multiple Choice
A negative test for starch will cause Iodine to stay...
orange/red
blue
black
brick red
- 8. Multiple Choice
A negative test for protein will cause Biuret to stay...
brick red
blue
black
orange
- 9. Multiple Choice
A negative test for glucose will cause Benedicts to stay...
brick red
blue
black
orange
- 10. Multiple Choice
Which chemicals did you mix to test for proteins - biuret test?
Ethanol and water
Iodine and potassium permanganate
Benedicts Solution
Sodium Hydroxide and Copper Sulphate
- 11. Multiple Choice
How do you test for lipids?
By using Ethanol and water
By using Benedicts solution
By using Iodine
By using Biuret test
- 12. Multiple Choice
What is a positive result for the lipid emulsion test?
milky white colour
clear
yellow
green
- 13. Multiple Choice
I am used to test for the presence of complex carbohydrates (starch)
Benedict's Test
Biurets Test
Iodine Test
Ethanol Emulsion Test
- 14. Multiple Choice
I am used to test for the presence of simple carbohydrates (glucose)
Benedict's Test
Biurets Test
Iodine Test
Ethanol Emulsion Test
- 15. Multiple Choice
I am used to test for the presence of protein
Benedict's Test
Biurets Test
Iodine Test
Ethanol Emulsion Test
- 16. Multiple Choice
I am used to test for the presence of lipids (fats)
Benedict's Test
Biurets Test
Iodine Test
Ethanol Emulsion Test
- 17. Multiple Choice
If I am positive, I will produce a precipitate
Benedict's Test
Biurets Test
Iodine Test
Ethanol Emulsion Test
- 18. Multiple Choice
If I am positive, I will turn brick-red colour
Benedict's Test
Biurets Test
Iodine Test
Ethanol Emulsion Test
- 19. Multiple Choice
If I am positive, I will turn dark blue/black
Benedict's Test
Biurets Test
Iodine Test
Ethanol Emulsion Test
- 20. Multiple Choice
If I am positive, I will turn purple
Benedict's Test
Biurets Test
Iodine Test
Ethanol Emulsion Test
- 21. Multiple Choice
In this experiment, you must put your test tubes into a hot water bath
Benedict's Test
Biurets Test
Iodine Test
Ethanol Emulsion Test
- 22. Multiple Choice
Which of the following tests for starch?
Iodine Solution
Benedict's Solution
Biuret Solution
Ethanol
- 23. Multiple Choice
Which of the following tests for protein?
Iodine Solution
Benedict's Solution
Biuret Solution
Ethanol
- 24. Multiple Choice
When protein is present Biuret turns...
purple
blue-black
orange
blue
- 25. Multiple Choice
In a negative test for starch, what colour will iodine solution be?
yellow-brown
blue
black
blue-black
- 26. Multiple Choice
A negative test for glucose will cause Benedicts to stay...
brick red
blue
black
yellow
- 27. Multiple Choice
If you drop iodine solution on bread, it changes to Black. What does this show?
Bread contains protein
Bread contains sugar
Bread contains starch
Bread contains lipids?
- 28. Multiple Choice
How do you test for lipids?
By using Ethanol and water
By using Benedicts solution
By using Iodine solution
By using Biuret test
- 29. Multiple ChoiceWhich test requires heat?BenedictsBiuretIodine
- 30. Multiple Choice
How do you test for lipids?
By using Ethanol
By using Benedicts solution
By using Iodine Solution
By using Biuret test
- 31. Multiple Choice
This photo represents a
negative test for glucose
negative test for protein
positive test for starch
positive test for glucose
- 32. Multiple Choice
The test tubes in the photo represent a negative and positive result for
Benedict's with glucose
Biuret with protein
Iodine with starch
Ethanol with fat
- 33. Multiple Choice
Which of the following tests for lipids?
Iodine solution
Benedicts solution
Biuret test
Ethanol
- 34. Multiple Choice
Which of the following tests for Glucose (sugar)?
Iodine solution
Benedict's solution
Biuret test
Ethanol
- 35. Multiple Choice
When lipid (fat) is present ethanol turns...
Clear
Cloudy/White
Black
Orange
- 36. Multiple Choice
When Starch is present Iodine Solution turns...
Clear
Cloudy/White
Black/dark blue
Orange
- 37. Multiple Choice
What tests for starch?
Benedict's Solution
Iodine Solution
Iodine
Ethanol
- 38. Multiple Choice
Which biomolecule turns iodine solution black?
starch
glucose
simple carbohydrate (monosaccharide)
lipid
- 39. Multiple Choice
Which biomolecule does Benedict's solution test for?
simple carbohydrate (glucose)
complex carbohydrates (starch)
proteins
lipids
- 40. Multiple ChoiceWhich reagent is used to test for proteins?iodine solutionBenedict's solutionBiuret solutionSudan III solution
- 41. Multiple Choice
Which biomolecule is this lab testing for?
simple carbohydrate (glucose)
complex carbohydrate (starch)
protein
lipid
- 42. Multiple Choice
What color does iodine turn in the presence of a complex carbohydrate (starch)?
range from yellow to red
blue/black
purplish/violet
red
- 43. Multiple ChoiceWhat color does biuret solution turn in the presence of a protein?range from yellow to redblue/blackpurplish/violetred
- 44. Multiple ChoiceTara conducted several tests on a mystery solution. Her results were as follows:
*Biuret's = purplish/violet; *Benedict's = orange; *Sudan III = yellow; *Iodine = black.
Which biomolecules were present in the mystery solution?protein & carbohydrateprotein & lipidcarbohydrate & lipidprotein, carbohydrate, & lipid - Answer choicesTagsAnswer choicesTags